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authorNeilBrown <neilb@suse.de>2006-06-26 00:27:40 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-26 09:58:37 -0700
commit5fd6c1dce06ec24ef3de20fe0c7ecf2ba9fe5ef9 (patch)
treebd7cc8c22615e8622d3d63b7fc68dcc3ac1964de /include/linux/raid/md_p.h
parenta8a55c387da28d67d98f56e4f5021462cb61f7a6 (diff)
[PATCH] md: allow checkpoint of recovery with version-1 superblock
For a while we have had checkpointing of resync. The version-1 superblock allows recovery to be checkpointed as well, and this patch implements that. Due to early carelessness we need to add a feature flag to signal that the recovery_offset field is in use, otherwise older kernels would assume that a partially recovered array is in fact fully recovered. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/raid/md_p.h')
-rw-r--r--include/linux/raid/md_p.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/raid/md_p.h b/include/linux/raid/md_p.h
index f1fbae7e390..b6ebc69bae5 100644
--- a/include/linux/raid/md_p.h
+++ b/include/linux/raid/md_p.h
@@ -265,9 +265,12 @@ struct mdp_superblock_1 {
/* feature_map bits */
#define MD_FEATURE_BITMAP_OFFSET 1
+#define MD_FEATURE_RECOVERY_OFFSET 2 /* recovery_offset is present and
+ * must be honoured
+ */
#define MD_FEATURE_RESHAPE_ACTIVE 4
-#define MD_FEATURE_ALL 5
+#define MD_FEATURE_ALL (1|2|4)
#endif